non-root sudo user<\/code>. If you don’t have one set up, you can follow our tutorial on creating a sudo user on Ubuntu 18.04<\/li>\n<\/ul>\n\r\n\r\n\r\nGet a High RAM VPS at Entry-level Pricing<\/p>\r\n\r\n<\/div>\r\n
\r\nStarting with 2GB RAM at $6.99\/month<\/p>\r\n\r\n<\/div>\r\n
\r\nTake your pick from our KVM VPS that offer a generous amount of RAM at an affordable price. We've got 5 plans for you to choose from, our cheapest featuring 2GB RAM at $6.99\/mo.<\/p>\r\n\r\n
[Main Features]<\/span>\r\n- SSD Drives\r\n- KVM Virtualization\r\n- 1Gbps Shared Uplink\r\n- Location: Chicago, IL<\/div>\r\n<\/div>\r\n\r\nPick one of our KVM plans<\/p>\r\n\r\n<\/div>\r\n
Get started now<\/a><\/div>\r\n<\/div>\r\n<\/div>\n\nStep 1 \u2013 Install PHP & Apache<\/h2>\n
We’ll first update our package index and install PHP and Apache.<\/p>\n
$ sudo apt-get update\n$ sudo apt-get install wget build-essential unzip openssl libssl-dev\n$ sudo apt-get install apache2 php libapache2-mod-php php-gd libgd-dev <\/code><\/pre>\nStep 2 \u2013 Create a User and Group for Nagios<\/h2>\n
Next, create a new user for Nagios, and assign them a password:<\/p>\n
$ sudo adduser nagios_user<\/code><\/pre>\nNow we’ll create a group for Nagios, which we’ll call nagcmd<\/code> and we’ll add the user we just created to this group.<\/p>\n$ sudo groupadd nagcmd\n$ sudo usermod -a -G nagcmd nagios_user<\/code><\/pre>\nWe’ll also add the user to the Apache group.<\/p>\n
$ sudo usermod -a -G nagcmd www-data<\/code><\/pre>\nStep 3 \u2013 Install Nagios Binaries<\/h2>\n
To install Nagios, we’ll first have to download the latest Nagios release. To do this, retrieve the tar.gz<\/code> download link from the Github Releases<\/a> page. The latest one at the time of writing is nagios-4.4.3.tar.gz<\/code>.<\/p>\nWe’ll first change our directory into \/opt<\/code>, download the release, and extract the archive.<\/p>\n$ cd \/opt\n$ sudo wget https:\/\/github.com\/NagiosEnterprises\/nagioscore\/releases\/download\/nagios-4.4.3\/nagios-4.4.3.tar.gz\n$ tar xzf nagios-4.4.3.tar.gz<\/code><\/pre>\nAfter extracting the archive, navigate into the source directory and install Nagios along with some additional requirements using the make<\/code> command:<\/p>\ncd nagios-4.4.3\nsudo .\/configure --with-command-group=nagcmd\nsudo make all\nsudo make install\nsudo make install-init\nsudo make install-daemoninit\nsudo make install-config\nsudo make install-commandmode\nsudo make install-exfoliation<\/code><\/pre>\nNow we’ll need to copy event handlers<\/strong> scripts to the libexec<\/code> directory. These provide multiple event triggers for the Nagios Web Interface.<\/p>\n$ sudo cp -R contrib\/eventhandlers\/ \/usr\/local\/nagios\/libexec\/\n$ sudo chown -R nagios:nagios \/usr\/local\/nagios\/libexec\/eventhandlers<\/code><\/pre>\nStep 4 \u2013 Set Up Apache with an Authentication Gateway<\/h2>\n
We’ll now set up Apache Virtual Hosts for Nagios, and to secure our web interface, we’ll set up an authentication gateway to prevent unauthorized access.<\/p>\n
To do this, we’ll create an Apache configuration file for Nagios:<\/p>\n
$ sudo nano \/etc\/apache2\/conf-available\/nagios.conf<\/code><\/pre>\nAnd paste the following content into the file.<\/p>\n
ScriptAlias \/nagios\/cgi-bin \"\/usr\/local\/nagios\/sbin\"\n\n<directory \"=\"\" usr=\"\" local=\"\" nagios=\"\" sbin\"=\"\">\n Options ExecCGI\n AllowOverride None\n Order allow,deny\n Allow from all\n AuthName \"Restricted Area\"\n AuthType Basic\n AuthUserFile \/usr\/local\/nagios\/etc\/htpasswd.users\n Require valid-user\n\n\nAlias \/nagios \"\/usr\/local\/nagios\/share\"\n\n<directory \"=\"\" usr=\"\" local=\"\" nagios=\"\" share\"=\"\">\n Options None\n AllowOverride None\n Order allow,deny\n Allow from all\n AuthName \"Restricted Area\"\n AuthType Basic\n AuthUserFile \/usr\/local\/nagios\/etc\/htpasswd.users\n Require valid-user\n<\/code><\/pre>\nSave and close the file when you’re done.<\/p>\n
Now we can set up the authentication gateway. We’ll use the user nagiosadmin<\/code>. This is the default user that we can use to authenticate, and to use a different one would require further configuration.<\/p>\n$ sudo htpasswd -c \/usr\/local\/nagios\/etc\/htpasswd.users nagiosadmin<\/code><\/pre>\nNow enable the Apache configuration and restart it so the changes take effect:<\/p>\n
$ sudo a2enconf nagios\n$ sudo a2enmod cgi rewrite\n$ sudo service apache2 restart<\/code><\/pre>\nStep 5 \u2013 Install Nagios Plugins<\/h2>\n
Once Nagios is installed and configured, we can download and install the latest nagios-plugins<\/code>. To do this, retrieve the latest nagios-plugins<\/code> release link from here<\/a>. The latest version at the time of writing is nagios-plugins-2.2.1.tar.gz<\/code>. After which, change the directory into \/opt<\/code>, download it, extract it, and navigate into it’s folder.<\/p>\n$ cd \/opt\n$ wget http:\/\/www.nagios-plugins.org\/download\/nagios-plugins-2.2.1.tar.gz\n$ tar xzf nagios-plugins-2.2.1.tar.gz\n$ cd nagios-plugins-2.2.1<\/code><\/pre>\nNow we compile and install nagios-plugins<\/code>:<\/p>\n$ sudo .\/configure --with-nagios-user=nagios --with-nagios-group=nagios --with-openssl\n$ sudo make\n$ sudo make install<\/code><\/pre>\nStep 6 \u2013 Verify & Start Nagios<\/h2>\n
After installing and configuring Nagios, we can verify if Nagios has been successfully installed, start it, and configure it to start on system boot.<\/p>\n
Verify the installation:<\/p>\n
$ \/usr\/local\/nagios\/bin\/nagios -v \/usr\/local\/nagios\/etc\/nagios.cfg<\/code><\/pre>\nExample Output<\/strong><\/p>\nNagios Core 4.4.3\nCopyright (c) 2009-present Nagios Core Development Team and Community Contributors\nCopyright (c) 1999-2009 Ethan Galstad\nLast Modified: 2019-01-15\nLicense: GPL\n\nWebsite: https:\/\/www.nagios.org\nReading configuration data...\n Read main config file okay...\n Read object config files okay...\n\nRunning pre-flight check on configuration data...\n\nChecking objects...\n\tChecked 8 services.\n\tChecked 1 hosts.\n\tChecked 1 host groups.\n\tChecked 0 service groups.\n\tChecked 1 contacts.\n\tChecked 1 contact groups.\n\tChecked 24 commands.\n\tChecked 5 time periods.\n\tChecked 0 host escalations.\n\tChecked 0 service escalations.\nChecking for circular paths...\n\tChecked 1 hosts\n\tChecked 0 service dependencies\n\tChecked 0 host dependencies\n\tChecked 5 timeperiods\nChecking global event handlers...\nChecking obsessive compulsive processor commands...\nChecking misc settings...\n\nTotal Warnings: 0\nTotal Errors: 0\n\nThings look okay - No serious problems were detected during the pre-flight check<\/code><\/pre>\nStart Nagios:<\/p>\n
$ service nagios start<\/code><\/pre>\nConfigure to start on system boot:<\/p>\n
$ sudo systemctl enable nagios<\/code><\/pre>\nStep 7 \u2013 Access the Nagios Web Interface<\/h2>\n
Now you can access the Nagios Web Interface by visiting your hostname or IP address in your browser followed by \/nagios<\/code>:<\/p>\nhttps:\/\/your_server_IP_or_domain\/nagios<\/code><\/pre>\nAnd login using nagiosadmin<\/code> and the assigned password.<\/p>\n![\"nagios_apache_authentication_gateway\"](\"https:\/\/draculaservers.com\/tutorials\/wp-content\/uploads\/2019\/01\/nagios_apache_authentication_gateway.png\")
<\/a><\/p>\nAnd you should be greeted by the Nagios dashboard.<\/p>\n
![\"nagios_start_page\"](\"https:\/\/draculaservers.com\/tutorials\/wp-content\/uploads\/2019\/01\/nagios_start_page.png\")
<\/a><\/p>\nConclusion<\/h2>\n
Well done. You now should have installed and configured Nagios for server monitoring.<\/p>\n
If you have any questions or find any issues with this guide, then please feel free to contact us via the comments or our social media channels and we’ll get back to you as soon as possible.<\/p>\n
\r\n\r\n\r\nGet a High RAM VPS at Entry-level Pricing<\/p>\r\n\r\n<\/div>\r\n
\r\nStarting with 2GB RAM at $6.99\/month<\/p>\r\n\r\n<\/div>\r\n
\r\nTake your pick from our KVM VPS that offer a generous amount of RAM at an affordable price. We've got 5 plans for you to choose from, our cheapest featuring 2GB RAM at $6.99\/mo.<\/p>\r\n\r\n
[Main Features]<\/span>\r\n- SSD Drives\r\n- KVM Virtualization\r\n- 1Gbps Shared Uplink\r\n- Location: Chicago, IL<\/div>\r\n<\/div>\r\n\r\nPick one of our KVM plans<\/p>\r\n\r\n<\/div>\r\n
Get started now<\/a><\/div>\r\n<\/div>\r\n<\/div>\n","protected":false},"excerpt":{"rendered":"Prerequisites To follow this tutorial we assume the following: You’re using a machine running Ubuntu or Debian. This tutorial is for Ubuntu 18.04, but it should work on Ubuntu 16.4, 14.04 and Debian systems. You’re acting as a non-root sudo user. If you don’t have one set up, you can follow our tutorial on creating […]<\/p>\n","protected":false},"author":1,"featured_media":1368,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[64,22],"tags":[83,84],"class_list":["post-1367","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-open-source","category-ubuntu","tag-nagios","tag-server-monitoring"],"blocksy_meta":{"styles_descriptor":{"styles":{"desktop":"","tablet":"","mobile":""},"google_fonts":[],"version":6}},"featured_image_urls_v2":{"full":["https:\/\/draculaservers.com\/tutorials\/wp-content\/uploads\/2019\/01\/How-to-Install-Nagios-4-on-Ubuntu-18.04-for-Server-Monitoring.png",1024,512,false],"thumbnail":["https:\/\/draculaservers.com\/tutorials\/wp-content\/uploads\/2019\/01\/How-to-Install-Nagios-4-on-Ubuntu-18.04-for-Server-Monitoring-150x150.png",150,150,true],"medium":["https:\/\/draculaservers.com\/tutorials\/wp-content\/uploads\/2019\/01\/How-to-Install-Nagios-4-on-Ubuntu-18.04-for-Server-Monitoring-300x150.png",300,150,true],"medium_large":["https:\/\/draculaservers.com\/tutorials\/wp-content\/uploads\/2019\/01\/How-to-Install-Nagios-4-on-Ubuntu-18.04-for-Server-Monitoring-768x384.png",768,384,true],"large":["https:\/\/draculaservers.com\/tutorials\/wp-content\/uploads\/2019\/01\/How-to-Install-Nagios-4-on-Ubuntu-18.04-for-Server-Monitoring.png",1024,512,false],"1536x1536":["https:\/\/draculaservers.com\/tutorials\/wp-content\/uploads\/2019\/01\/How-to-Install-Nagios-4-on-Ubuntu-18.04-for-Server-Monitoring.png",1024,512,false],"2048x2048":["https:\/\/draculaservers.com\/tutorials\/wp-content\/uploads\/2019\/01\/How-to-Install-Nagios-4-on-Ubuntu-18.04-for-Server-Monitoring.png",1024,512,false],"pk-small":["https:\/\/draculaservers.com\/tutorials\/wp-content\/uploads\/2019\/01\/How-to-Install-Nagios-4-on-Ubuntu-18.04-for-Server-Monitoring-80x80.png",80,80,true],"pk-thumbnail":["https:\/\/draculaservers.com\/tutorials\/wp-content\/uploads\/2019\/01\/How-to-Install-Nagios-4-on-Ubuntu-18.04-for-Server-Monitoring-300x225.png",300,225,true]},"post_excerpt_stackable_v2":"
Prerequisites To follow this tutorial we assume the following: You’re using a machine running Ubuntu or Debian. This tutorial is for Ubuntu 18.04, but it should work on Ubuntu 16.4, 14.04 and Debian systems. You’re acting as a non-root sudo user. If you don’t have one set up, you can follow our tutorial on creating a sudo user on Ubuntu 18.04 Get a High RAM VPS at Entry-level Pricing Starting with 2GB RAM at $6.99\/month Take your pick from our KVM VPS that offer a generous amount of RAM at an affordable price. We’ve got 5 plans for you to…<\/p>\n","category_list_v2":"Open-source<\/a>, Ubuntu<\/a>","author_info_v2":{"name":"Vlad","url":"https:\/\/draculaservers.com\/tutorials\/author\/vlad\/"},"comments_num_v2":"0 comments","yoast_head":"\nHow to Install & Configure Nagios 4 on Ubuntu 18.04 for Server Monitoring<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/draculaservers.com\/tutorials\/install-nagios-ubuntu\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to Install & Configure Nagios 4 on Ubuntu 18.04 for Server Monitoring\" \/>\n<meta property=\"og:description\" content=\"Prerequisites To follow this tutorial we assume the following: You’re using a machine running Ubuntu or Debian. This tutorial is for Ubuntu 18.04, but it should work on Ubuntu 16.4, 14.04 and Debian systems. You’re acting as a non-root sudo user. If you don’t have one set up, you can follow our tutorial on creating […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/draculaservers.com\/tutorials\/install-nagios-ubuntu\/\" \/>\n<meta property=\"og:site_name\" content=\"Dracula Servers Tutorials\" \/>\n<meta property=\"article:published_time\" content=\"2019-01-16T23:06:56+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2021-11-14T20:34:35+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/draculaservers.com\/tutorials\/wp-content\/uploads\/2019\/01\/How-to-Install-Nagios-4-on-Ubuntu-18.04-for-Server-Monitoring.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1024\" \/>\n\t<meta property=\"og:image:height\" content=\"512\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Vlad\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Vlad\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/draculaservers.com\\\/tutorials\\\/install-nagios-ubuntu\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/draculaservers.com\\\/tutorials\\\/install-nagios-ubuntu\\\/\"},\"author\":{\"name\":\"Vlad\",\"@id\":\"https:\\\/\\\/draculaservers.com\\\/tutorials\\\/#\\\/schema\\\/person\\\/931f7fa8b2126ace6edfb82775e0ec0e\"},\"headline\":\"How to Install Nagios 4 on Ubuntu 18.04 for Server Monitoring\",\"datePublished\":\"2019-01-16T23:06:56+00:00\",\"dateModified\":\"2021-11-14T20:34:35+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/draculaservers.com\\\/tutorials\\\/install-nagios-ubuntu\\\/\"},\"wordCount\":536,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/draculaservers.com\\\/tutorials\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/draculaservers.com\\\/tutorials\\\/install-nagios-ubuntu\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/draculaservers.com\\\/tutorials\\\/wp-content\\\/uploads\\\/2019\\\/01\\\/How-to-Install-Nagios-4-on-Ubuntu-18.04-for-Server-Monitoring.png\",\"keywords\":[\"Nagios\",\"Server Monitoring\"],\"articleSection\":[\"Open-source\",\"Ubuntu\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/draculaservers.com\\\/tutorials\\\/install-nagios-ubuntu\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/draculaservers.com\\\/tutorials\\\/install-nagios-ubuntu\\\/\",\"url\":\"https:\\\/\\\/draculaservers.com\\\/tutorials\\\/install-nagios-ubuntu\\\/\",\"name\":\"How to Install & Configure Nagios 4 on Ubuntu 18.04 for Server Monitoring\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/draculaservers.com\\\/tutorials\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/draculaservers.com\\\/tutorials\\\/install-nagios-ubuntu\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/draculaservers.com\\\/tutorials\\\/install-nagios-ubuntu\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/draculaservers.com\\\/tutorials\\\/wp-content\\\/uploads\\\/2019\\\/01\\\/How-to-Install-Nagios-4-on-Ubuntu-18.04-for-Server-Monitoring.png\",\"datePublished\":\"2019-01-16T23:06:56+00:00\",\"dateModified\":\"2021-11-14T20:34:35+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/draculaservers.com\\\/tutorials\\\/install-nagios-ubuntu\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/draculaservers.com\\\/tutorials\\\/install-nagios-ubuntu\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/draculaservers.com\\\/tutorials\\\/install-nagios-ubuntu\\\/#primaryimage\",\"url\":\"https:\\\/\\\/draculaservers.com\\\/tutorials\\\/wp-content\\\/uploads\\\/2019\\\/01\\\/How-to-Install-Nagios-4-on-Ubuntu-18.04-for-Server-Monitoring.png\",\"contentUrl\":\"https:\\\/\\\/draculaservers.com\\\/tutorials\\\/wp-content\\\/uploads\\\/2019\\\/01\\\/How-to-Install-Nagios-4-on-Ubuntu-18.04-for-Server-Monitoring.png\",\"width\":1024,\"height\":512,\"caption\":\"install_nagios_ubuntu\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/draculaservers.com\\\/tutorials\\\/install-nagios-ubuntu\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/draculaservers.com\\\/tutorials\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"How to Install Nagios 4 on Ubuntu 18.04 for Server Monitoring\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/draculaservers.com\\\/tutorials\\\/#website\",\"url\":\"https:\\\/\\\/draculaservers.com\\\/tutorials\\\/\",\"name\":\"Dracula Servers Tutorials\",\"description\":\"Dedicated Servers\",\"publisher\":{\"@id\":\"https:\\\/\\\/draculaservers.com\\\/tutorials\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/draculaservers.com\\\/tutorials\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/draculaservers.com\\\/tutorials\\\/#organization\",\"name\":\"Dracula Servers\",\"url\":\"https:\\\/\\\/draculaservers.com\\\/tutorials\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/draculaservers.com\\\/tutorials\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/draculaservers.com\\\/tutorials\\\/wp-content\\\/uploads\\\/2016\\\/06\\\/dracula_full_logo_smaller.png\",\"contentUrl\":\"https:\\\/\\\/draculaservers.com\\\/tutorials\\\/wp-content\\\/uploads\\\/2016\\\/06\\\/dracula_full_logo_smaller.png\",\"width\":1625,\"height\":200,\"caption\":\"Dracula Servers\"},\"image\":{\"@id\":\"https:\\\/\\\/draculaservers.com\\\/tutorials\\\/#\\\/schema\\\/logo\\\/image\\\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/draculaservers.com\\\/tutorials\\\/#\\\/schema\\\/person\\\/931f7fa8b2126ace6edfb82775e0ec0e\",\"name\":\"Vlad\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/499c7a24aa9727703300a291f8f69dfd1b01b8d6a19a4ae4fbe669b4b12b8cbe?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/499c7a24aa9727703300a291f8f69dfd1b01b8d6a19a4ae4fbe669b4b12b8cbe?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/499c7a24aa9727703300a291f8f69dfd1b01b8d6a19a4ae4fbe669b4b12b8cbe?s=96&d=mm&r=g\",\"caption\":\"Vlad\"},\"description\":\"Tech Support\",\"sameAs\":[\"https:\\\/\\\/draculaservers.com\"]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"How to Install & Configure Nagios 4 on Ubuntu 18.04 for Server Monitoring","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/draculaservers.com\/tutorials\/install-nagios-ubuntu\/","og_locale":"en_US","og_type":"article","og_title":"How to Install & Configure Nagios 4 on Ubuntu 18.04 for Server Monitoring","og_description":"Prerequisites To follow this tutorial we assume the following: You’re using a machine running Ubuntu or Debian. This tutorial is for Ubuntu 18.04, but it should work on Ubuntu 16.4, 14.04 and Debian systems. You’re acting as a non-root sudo user. If you don’t have one set up, you can follow our tutorial on creating […]","og_url":"https:\/\/draculaservers.com\/tutorials\/install-nagios-ubuntu\/","og_site_name":"Dracula Servers Tutorials","article_published_time":"2019-01-16T23:06:56+00:00","article_modified_time":"2021-11-14T20:34:35+00:00","og_image":[{"width":1024,"height":512,"url":"https:\/\/draculaservers.com\/tutorials\/wp-content\/uploads\/2019\/01\/How-to-Install-Nagios-4-on-Ubuntu-18.04-for-Server-Monitoring.png","type":"image\/png"}],"author":"Vlad","twitter_card":"summary_large_image","twitter_misc":{"Written by":"Vlad","Est. reading time":"5 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/draculaservers.com\/tutorials\/install-nagios-ubuntu\/#article","isPartOf":{"@id":"https:\/\/draculaservers.com\/tutorials\/install-nagios-ubuntu\/"},"author":{"name":"Vlad","@id":"https:\/\/draculaservers.com\/tutorials\/#\/schema\/person\/931f7fa8b2126ace6edfb82775e0ec0e"},"headline":"How to Install Nagios 4 on Ubuntu 18.04 for Server Monitoring","datePublished":"2019-01-16T23:06:56+00:00","dateModified":"2021-11-14T20:34:35+00:00","mainEntityOfPage":{"@id":"https:\/\/draculaservers.com\/tutorials\/install-nagios-ubuntu\/"},"wordCount":536,"commentCount":0,"publisher":{"@id":"https:\/\/draculaservers.com\/tutorials\/#organization"},"image":{"@id":"https:\/\/draculaservers.com\/tutorials\/install-nagios-ubuntu\/#primaryimage"},"thumbnailUrl":"https:\/\/draculaservers.com\/tutorials\/wp-content\/uploads\/2019\/01\/How-to-Install-Nagios-4-on-Ubuntu-18.04-for-Server-Monitoring.png","keywords":["Nagios","Server Monitoring"],"articleSection":["Open-source","Ubuntu"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/draculaservers.com\/tutorials\/install-nagios-ubuntu\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/draculaservers.com\/tutorials\/install-nagios-ubuntu\/","url":"https:\/\/draculaservers.com\/tutorials\/install-nagios-ubuntu\/","name":"How to Install & Configure Nagios 4 on Ubuntu 18.04 for Server Monitoring","isPartOf":{"@id":"https:\/\/draculaservers.com\/tutorials\/#website"},"primaryImageOfPage":{"@id":"https:\/\/draculaservers.com\/tutorials\/install-nagios-ubuntu\/#primaryimage"},"image":{"@id":"https:\/\/draculaservers.com\/tutorials\/install-nagios-ubuntu\/#primaryimage"},"thumbnailUrl":"https:\/\/draculaservers.com\/tutorials\/wp-content\/uploads\/2019\/01\/How-to-Install-Nagios-4-on-Ubuntu-18.04-for-Server-Monitoring.png","datePublished":"2019-01-16T23:06:56+00:00","dateModified":"2021-11-14T20:34:35+00:00","breadcrumb":{"@id":"https:\/\/draculaservers.com\/tutorials\/install-nagios-ubuntu\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/draculaservers.com\/tutorials\/install-nagios-ubuntu\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/draculaservers.com\/tutorials\/install-nagios-ubuntu\/#primaryimage","url":"https:\/\/draculaservers.com\/tutorials\/wp-content\/uploads\/2019\/01\/How-to-Install-Nagios-4-on-Ubuntu-18.04-for-Server-Monitoring.png","contentUrl":"https:\/\/draculaservers.com\/tutorials\/wp-content\/uploads\/2019\/01\/How-to-Install-Nagios-4-on-Ubuntu-18.04-for-Server-Monitoring.png","width":1024,"height":512,"caption":"install_nagios_ubuntu"},{"@type":"BreadcrumbList","@id":"https:\/\/draculaservers.com\/tutorials\/install-nagios-ubuntu\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/draculaservers.com\/tutorials\/"},{"@type":"ListItem","position":2,"name":"How to Install Nagios 4 on Ubuntu 18.04 for Server Monitoring"}]},{"@type":"WebSite","@id":"https:\/\/draculaservers.com\/tutorials\/#website","url":"https:\/\/draculaservers.com\/tutorials\/","name":"Dracula Servers Tutorials","description":"Dedicated Servers","publisher":{"@id":"https:\/\/draculaservers.com\/tutorials\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/draculaservers.com\/tutorials\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/draculaservers.com\/tutorials\/#organization","name":"Dracula Servers","url":"https:\/\/draculaservers.com\/tutorials\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/draculaservers.com\/tutorials\/#\/schema\/logo\/image\/","url":"https:\/\/draculaservers.com\/tutorials\/wp-content\/uploads\/2016\/06\/dracula_full_logo_smaller.png","contentUrl":"https:\/\/draculaservers.com\/tutorials\/wp-content\/uploads\/2016\/06\/dracula_full_logo_smaller.png","width":1625,"height":200,"caption":"Dracula Servers"},"image":{"@id":"https:\/\/draculaservers.com\/tutorials\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/draculaservers.com\/tutorials\/#\/schema\/person\/931f7fa8b2126ace6edfb82775e0ec0e","name":"Vlad","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/secure.gravatar.com\/avatar\/499c7a24aa9727703300a291f8f69dfd1b01b8d6a19a4ae4fbe669b4b12b8cbe?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/499c7a24aa9727703300a291f8f69dfd1b01b8d6a19a4ae4fbe669b4b12b8cbe?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/499c7a24aa9727703300a291f8f69dfd1b01b8d6a19a4ae4fbe669b4b12b8cbe?s=96&d=mm&r=g","caption":"Vlad"},"description":"Tech Support","sameAs":["https:\/\/draculaservers.com"]}]}},"_links":{"self":[{"href":"https:\/\/draculaservers.com\/tutorials\/wp-json\/wp\/v2\/posts\/1367","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/draculaservers.com\/tutorials\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/draculaservers.com\/tutorials\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/draculaservers.com\/tutorials\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/draculaservers.com\/tutorials\/wp-json\/wp\/v2\/comments?post=1367"}],"version-history":[{"count":1,"href":"https:\/\/draculaservers.com\/tutorials\/wp-json\/wp\/v2\/posts\/1367\/revisions"}],"predecessor-version":[{"id":2143,"href":"https:\/\/draculaservers.com\/tutorials\/wp-json\/wp\/v2\/posts\/1367\/revisions\/2143"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/draculaservers.com\/tutorials\/wp-json\/wp\/v2\/media\/1368"}],"wp:attachment":[{"href":"https:\/\/draculaservers.com\/tutorials\/wp-json\/wp\/v2\/media?parent=1367"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/draculaservers.com\/tutorials\/wp-json\/wp\/v2\/categories?post=1367"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/draculaservers.com\/tutorials\/wp-json\/wp\/v2\/tags?post=1367"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}